Maintenance and inspection (Audi 100 C3)

1. At the intervals specified in Section "Maintenance" check the transmission fluid level and differential oil level and top up if necessary.

2. The fluid level should be checked under certain conditions. The transmission should be at normal operating temperature (it can be achieved by driving about 10 km with a cold start).

3. Place the car on a level surface with the engine idling and the selector lever in the N (Neutral) position, remove the dipstick, wipe it. Insert the dipstick all the way and remove it again, check the fluid level, which should be between the two marks.

4. If refueling is necessary, turn off the engine, add fluid through the dipstick tube. Try not to overfill the fluid; the difference between the upper and lower marks on the dipstick is 0.4 liters.

5. The differential oil level is checked through the filler plug located on the rear of the drive shaft flange on the left side of the transmission. The easiest access is from underneath the vehicle.

6. Unscrew the filler plug, the level should be up to the hole in the filler plug.

7. If refilling is necessary, add oil through the filler hole and install the plug.

8. At the intervals specified in Section "Maintenance" change the transmission fluid using the procedures described in Chapter 3. However, it is not necessary to drain and fill the differential final drive oil as part of the normal maintenance procedure.